POP UP, based on 'pop' being slang for 'pawn' (goods), as explained in a 1960s pop(!) song by Anthony Newley:Phil Neatherway wrote: ↑Wed Jan 25, 2023 10:10 amAppear unexpectedly to be pawn ahead (3,2)
Taken from the Times Cryptic Crossword Book 1, puzzle 10.
You know, pop goes the weasel
For years, I've wondered
What that meant
And nobody seemed to know
So, I looked it up
And the official explanation
Goes something like this
Pop goes the weasel refers to
The habit of London hatters long ago
Popping or pawning their weasels
Or accessories on Saturday night
To buy liquor, isn't that interesting? Haha